explain xkcd - User contributions [en]

Talk:2412: 1/100,000th Scale World

2021-01-15T23:24:50Z

162.158.74.39:

Sprites?

[[Special:Contributions/172.68.174.44|172.68.174.44]] 17:01, 15 January 2021 (UTC)

Looks like there is a form of electrical discharge that can occur above thunderstorms called a [https://en.wikipedia.org/wiki/Sprite_(lightning) Sprite]

It actually took me a second to realise this was a new comic, I thought Randal just added different jokes to Wednesday's for some reason. Given the title text, I wonder what projection Randall would use for this scale model... I imagine a projection similar to [https://en.wikipedia.org/wiki/Build_the_Earth#Map_projection Build the Earth's modified Airocean] would work for something like this.--[[Special:Contributions/172.69.35.85|172.69.35.85]] 17:12, 15 January 2021 (UTC)

Just for reference and to be checked, I paste here the maths to compute that the panel spans 9 degrees of a great circle:
<pre>
> 10/1e3*1e5/6371*180/pi
[1] 8.993216
</pre>
--[[User:Pere prlpz|Pere prlpz]] ([[User talk:Pere prlpz|talk]]) 19:21, 15 January 2021 (UTC)

The ISS game seems very contradictory to the other rules in this and the previous comic. Given that the ISS would be only about 1 mm wide, hitting it with a nerf dart would almost certainly destroy it. [[User:Bischoff|Bischoff]] ([[User talk:Bischoff|talk]]) 19:59, 15 January 2021 (UTC)
:The world is at scale, but people and the artifacts they create don't seem to be. In particular, the wine glasses are normal size relative to the people. So the ISS may be life size, and hitting it with a dart should be trivial.

Is this a duplicate? Looks the same as [[2411: 1/10,000th Scale World]]. [[User:PvOberstein|PvOberstein]] ([[User talk:PvOberstein|talk]]) 20:24, 15 January 2021 (UTC)
:Look better, the scale is different. [[Special:Contributions/172.68.245.47|172.68.245.47]] 20:40, 15 January 2021 (UTC)

Correct me if im wrong but if you ran fast enough, could you go into orbit around earth? [[User:Donthaveusername|Donthaveusername]] ([[User talk:Donthaveusername|talk]]) 20:56, 15 January 2021 (UTC) 
:This "What If" might help: [https://what-if.xkcd.com/68/ Little Planet] ''(also, I closed your /span tag (not sure why it's there, just following etiquette/not editing your post, while trying to fix a superfluous code-block /div that the wiki was inserting)'' [[User:Elvenivle|Elvenivle]] ([[User talk:Elvenivle|talk]]) 22:40, 15 January 2021 (UTC)

1:1,000,000 scale next? [[Special:Contributions/162.158.74.39|162.158.74.39]] 23:24, 15 January 2021 (UTC)

2043: Boathouses and Houseboats

2018-09-07T19:22:15Z

162.158.74.39: /* Explanation */

{{comic
| number = 2043
| date = September 7, 2018
| title = Boathouses and Houseboats
| image = boathouses_and_houseboats.png
| titletext = The <x> that is held by <y> is also a <y><x>, so if you go to a food truck, the stuff you buy is truck food. A phone that's in your car is a carphone, and a car equipped with a phone is a phonecar. When you play a mobile racing game, you're in your phonecar using your carphone to drive a different phonecar. I'm still not sure about bananaphones.
}}

==Explanation==
{{incomplete|Created by someone on a PERSONBOAT on a BOATBOAT - Please change this comment when editing this page. Do NOT delete this tag too soon.}}

Randall is engaging in creative linguistics again.
This time he is humorously suggesting to use a consistent naming scheme for things holding other things, the same way we call a boat holding a house a houseboat.
He is extending this to all combinations boats, houses and cars.
This would, however, be somewhat impractical, as these names do not include why one thing is on an other, and are also sometimes ambiguous: a carcar can be a tow truck as much as a car carrier, and a househouse can be either an apartment or the building which houses it.

Additionally, he is somewhat inconsistent with this himself.
He proposes to call lifeboats "boatboat", which are boats held by other boats, as opposed to boats holding other boats, such as floating drydocks. The consistent term to use here would be "Ship."

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

:[A 3x3 chart is shown, with axes labeled "A (this) that holds (this)".]

:[Most entries have the common word in black, crossed out in red with the "new scheme" word in red.]

:[A Car that holds a Car:] <s>Tow truck</s> Carcar

:[A House that holds a Car:] <s>Garage</s> Carhouse

:[A Boat that holds a Car:] <s>Car ferry</s> Carboat

:[A Car that holds a House:] <s>Mobile home</s> Housecar

:[A House that holds a House:] <s>Apartment</s> Househouse

:[A Boat that holds a House:] Houseboat [green text]

:[A Car that holds a Boat:] <s>Boat trailer</s> Boatcar

:[A House that holds a Boat:] Boathouse [green text]

:[A Boat that holds a Boat:] <s>Lifeboat</s> Boatboat

:[Caption below the chart:]
:I really like the words for "boathouse" and "houseboat" and think we should apply that scheme more consistently.

==Trivia==
The first version of the comic image mixed up the order of what holds what. The second word holds the first but at the original the opposite was told as it can be seen [https://www.explainxkcd.com/wiki/images/archive/3/38/20180907164439%21boathouses_and_houseboats.png here].

{{comic discussion}}

[[Category:Comics with color]]
[[Category:Language]]

950: Mystery Solved

2018-08-22T06:57:15Z

162.158.74.39: /* Explanation */

{{comic
| number = 950
| date = September 12, 2011
| title = Mystery Solved
| image = mystery_solved.png
| titletext = The Roanoke Lost Colonists founded Roanoke, the Franklin Expedition reached the Pacific in 2009 when the Northwest Passage opened, and Jimmy Hoffa currently heads the Teamsters Union--he just started going by 'James'.
}}

==Explanation==
In this comic, aviation pioneer {{w|Amelia Earhart|Amelia Earhart's}} plane comes back to land after it went missing in 1937. It was presumed that Earhart was dead and that her plane went down into the ocean at some point during her journey, although various alternate theories have arisen since then, with no clear answer to the mystery. However, this comic proposes a much simpler explanation: there was no disappearance, it just took her 74 years to fly around the Earth. This explanation is simple, but impossible.

Earhart seems to think Cueball is stupid for not comprehending such a simple answer, but in fact her explanation raises a multitude of other questions. Among them:
* How did it take so long for her to land? (She answers that the world is big, but it isn't so big that it takes 74 years to fly around it, even with 1937 technology. Earhart had already completed the majority of her journey before disappearing, and had only to cross the Pacific Ocean -- with stops in Howland Island and Hawaii -- before returning to her point of origin in Oakland, California. Had her flight succeeded, she could have completed it within three days of when she was last seen.)
* How did she survive that long, apparently without aging?
* Why didn't anyone else see her on her journey?
* Why doesn't she know that a flight shouldn't take 74 years?

Another possibility is that she did not just fly around the earth, but flew very fast (near {{w|light speed}}) for 74 years to return {{w|Twin paradox|without having aged much}}. However, this would not explain why she thinks it is a long trip around the earth, or how she would accomplish this feat in a {{w|Lockheed Model 10 Electra|twin-engine monoplane}}.

Earhart's disappearence gave birth to many conspiracy theories. One of these, which was explored in the TV series [http://memory-alpha.wikia.com/wiki/Star_Trek:_Voyager Star Trek: Voyager], involves [http://memory-alpha.wikia.com/wiki/The_37%27s_(episode) her being abducted] to another [http://memory-alpha.wikia.com/wiki/Delta_Quadrant part of the galaxy], where she was left in cryogenic stasis until found by the Voyager crew. Something similar could be the case here, having Earhart frozen by aliens until 2011.

The title text lists a few more deceptively mundane answers to long-unsolved mysteries that at first seem to dispel the questions with boring logic, but in fact raise more questions than they answer. The first is the lost colonists of {{w|Roanoke Colony|Roanoke}}, who were one of the first groups to come to North America, but then suddenly disappeared, leaving their colony untouched. The comic suggests that they simply left to found {{w|Roanoke, Virginia}}. Like all the other explanations in this comic, this doesn't explain how this simple solution became lost to public knowledge. It also doesn't explain why they abandoned their original colony, or how they made it to Roanoke, Virginia, which is more than 300 miles away.

The second mystery in the title text, the {{w|Franklin's lost expedition|Franklin Expedition}}, was a British voyage in 1845 to study the {{w|Northwest Passage}} that also disappeared, somewhere in northern Canada. The text suggests that the expedition wasn't lost; it was still exploring and eventually found its way to the Pacific Ocean in 2009. This is impossible, because the men on the expedition would be long dead.

The final mystery is {{w|Jimmy Hoffa}}, the famous {{w|International Brotherhood of Teamsters|Teamsters Union}} leader who went missing in 1975 and declared dead in 1982 (possibly murdered). The comic says Jimmy simply opted to switch to the more formal version of his name; again, this raises the question of how such a thing would be possible without anyone noticing. The current head of the Teamsters is in fact named {{w|James P. Hoffa|James Hoffa}} (he is Jimmy Hoffa's son and goes by "James P. Hoffa" professionally); the comic could be implying that the senior Hoffa is not only alive but actually impersonating his own son.

==Transcript==
:[A twin prop airplane flies high overhead.]
:Off-screen person: What's that airplane?

:[The plane has landed, and the pilot is walking towards the crowd waving.]
:Off-screen person: Holy crap— Is that Amelia Earhart?

:[A close up of Amelia Earhart waving.]
:Amelia: Hey everyone! My flight was a success!
:Off-screen person: But... Where were you!?

:[A wide view of Amelia, she stops waving.]
:Amelia: I flew around the world!
:Off-screen person: But you disappeared in 1937!

:[A close up of Amelia Earhart.]
:Amelia: Right, to fly around the world.
:Off-screen person: It's 2011!
:Amelia: The world is big. It's a long flight.

:[A wide view of Amelia]
:Off-screen person:
::But you...
::It's not...
::I -
:Amelia: Can I talk to someone smarter?

{{comic discussion}}
[[Category:Comics featuring real people]]

Talk:2034: Equations

2018-08-19T22:20:18Z

162.158.74.39:

Is the joke that all of the equations are actually wrong/malformed/meaningless but they sort of look like typical equations for that field? {{unsigned ip|172.68.133.66}}
:Sort of. A bit of dimensional analysis would have helped. ;-) --[[Special:Contributions/162.158.91.221|162.158.91.221]] 07:28, 17 August 2018 (UTC)
:I feel that the joke is that all the equations are very complicated, and use multiple letters and symbols. But the last one "Truly deep Physics Equations" are summed up with just 3 characters and 2 basic operators. [[Special:Contributions/108.162.250.11|108.162.250.11]] 10:56, 19 August 2018 (UTC)

He's nerd sniping us all.. ([[Special:Contributions/162.158.167.120|162.158.167.120]] 03:30, 18 August 2018 (UTC))

Should we add a column with examples of similar correct equations from the respective fields? Sebastian --[[Special:Contributions/172.68.110.4|172.68.110.4]] 09:33, 17 August 2018 (UTC)
:That would definitely tidy up my attempts to provide context for Randall's versions. The challenge then is working in explanations for the correct equations as well as arguing over which examples should be used. [[User:Exxi|Exxi]] ([[User talk:Exxi|talk]]) 09:45, 17 August 2018 (UTC)

I don't think the part in parentheses about OH in the Chemistry equation explanation is correct. OH- would mean that it's negatively charged and has nothing to do with unpaired electrons of Oxygen. It would add another horror to the equation, though, as it wouldn't be charge preserving anymore. [[Special:Contributions/162.158.88.230|162.158.88.230]] 09:58, 17 August 2018 (UTC)

"Redshit". Best typo ever. Please keep it. [[Special:Contributions/172.69.54.177|172.69.54.177]] 10:13, 17 August 2018 (UTC)

;Deep physics equations
The transcript is wrong here, the last letter is not a <math>\mu</math>, but a "u" with a cedilla: u̧. The math parser refuses to render it, though. [[Special:Contributions/162.158.88.230|162.158.88.230]] 05:54, 17 August 2018 (UTC)
:Looks like it. But I don't think that letter exists even. --[[Special:Contributions/162.158.91.221|162.158.91.221]] 07:28, 17 August 2018 (UTC)
:Is this equation a sort of nod to a Theory Of Everything which unifies quantum mechanics and gravity... H-hat (a Hamiltonian, which in quantum mechanics describes the total energy of a system, and usually runs in to problems describing large systems - such as the entire universe - where gravity or spacetime curvature effects matter) *minus* u0 (the relativistic mass of the whole system at time zero ie. the big bang) gives 0 (no energy everywhere always). Since mass is energy (e=mc^2) and mass is also the sole cause of gravity the two theories cleanly collapse together when mass is zero, and figuring out how to extend the theory to other less clean points on the mass axis is obviously a job for less profound physics? I've no ideas to explain the cedilla. [[Special:Contributions/141.101.98.28|141.101.98.28]] 08:49, 17 August 2018 (UTC)
:It looks to me a little like a parody of the {{w|Wheeler-DeWitt_equation#Hamiltonian_constraint|Wheeler-DeWitt equation}} which (in theory) describes a wavefunction for the entire Universe. [[User:Exxi|Exxi]] ([[User talk:Exxi|talk]]) 09:06, 17 August 2018 (UTC)一
: I'm just thrilled someone found the right character for it. I spent 20 minutes looking for the right u symbol without any luck at all. {{unsigned ip|172.68.143.132}}
Is this poking fun at equation-filled blackboards in movies and cartoons? {{unsigned ip|172.68.254.42}}
:Doesn't seem like it. These equations actually do look like the kinds of equations you would see in these fields. On blackboards in movies you tend to get equations that are pure nonsense. {{unsigned ip|172.68.143.132}}
I think this may also be a reference to Feynman's unworldliness equation, http://www.feynmanlectures.caltech.edu/II_25.html#Ch25-S6 . [[Special:Contributions/108.162.219.220|108.162.219.220]] 17:02, 17 August 2018 (UTC)

;Table layout at the explanation
That oversized table is really bad layout. We've had this discussion many times before - tables should only be used for small contents. Right now I would run into too many edit conflicts but I'll change it to a proper floating text with small headers for each section. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 11:51, 17 August 2018 (UTC)
:Done, looks much more like a real paper... --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 12:58, 17 August 2018 (UTC)

;All number theory equation
The explanation for math doesn't seem entirely correct. You can in fact extend the ring of integers (as well as rational and real numbers) with positive and negative infinity, but it won't be a ring anymore. Specifically, the infinities don't have an additive or multiplicative inverse (but 1/infinity = 0); and addition of positive and negative infinity, as well as the product of 0 and either infinity is undefined. However, these properties are not used in the above equation. What we ''can'' use is that <math>\forall n < \infty: n - \infty= -\infty </math>. We would thus have <math>K_n = \sum_{i=0}^{\infty}\sum_{\pi=0}^{\infty}(n-\pi)(i-e^{\pi-\infty}) = \sum_{i=0}^{\infty}\sum_{\pi=0}^{\infty}(n-\pi)(i-0) = \sum_{i=0}^{\infty}\sum_{\pi=0}^{\infty}(n-\pi)i= \sum_{i=0}^{\infty}i\sum_{\pi=n}^{\infty}-\pi= \sum_{i=0}^{\infty}i\cdot(-\infty)=-\infty</math>. Also, how often does one use e and pi in number theory? --[[User:Ycthiognass|Ycthiognass]] ([[User talk:Ycthiognass|talk]]) 12:11, 17 August 2018 (UTC)
:Pi (or any other number) minus infinite is just absurd. You can use the infinite symbol only as a limit but NOT as number in calculations. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 12:33, 17 August 2018 (UTC)
::It is not absurd. Adding the rules <math>n+\infty=\infty\text{ for }n>-\infty,n-\infty=-\infty\text{ for }n<\infty, \pm n\cdot\infty = \pm\infty\text{ for }n>0, \pm n\cdot(-\infty) = \mp\infty\text{ for }n>0,\frac1{\pm\infty}=0</math> gives you a consistent theory that is especially useful when talking about infinite sums and integrals. Would you say the term <math>n-\sum_{i=1}^\infty i</math> is absurd? --[[User:Ycthiognass|Ycthiognass]] ([[User talk:Ycthiognass|talk]]) 14:35, 17 August 2018 (UTC)
:::Of course it's absurd. It is <math>\infty-\infty \neq 0</math> because it could be everything between <math>\infty</math> and <math>-\infty</math>. {{w|Infinity}} is a concept describing something without any bound... And, as you can't divide by zero you can't do the same for infinity. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 17:24, 17 August 2018 (UTC)
:::One more: It is
::::<math>\sum_{i=1}^\infty a_i = \lim_{n\to\infty} \sum_{i=1}^n a_i.</math>
:::When this limit exists, one says that the series is ''convergent'' or ''summable''. Otherwise it's called ''divergent'' and has no solution like this one:
::::<math>\sum_{i=1}^\infty i</math>
:::Infinite is NO number! --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 17:33, 17 August 2018 (UTC)

Completely separate from the above, it's probably worth noting that i is also a constant, and as such has the same misconception as <math>\pi</math>. Computer scientists are happy using i for loops/summations, but mathematicians prefer using n. Based off that, it's probably another misconception/joke that n is treated as a constant, while known-constants are used as variables. [[Special:Contributions/108.162.246.149|108.162.246.149]] 17:28, 17 August 2018 (UTC)
:There is nothing non-standard about using i as an index variable. Often as part of the series i,j,k. Searching for summation convention will give plenty of examples.
:There are fewer letters than mathematical concepts in need of letters, so most letters are used for multiple purposes. Occasionally this causes difficulty. You can be halfway through a linear algebra problem before you discover you need i for an imaginary number despite already using it as an index. Hilarity ensues. [[Special:Contributions/162.158.74.105|162.158.74.105]] 19:57, 17 August 2018 (UTC)

Is it worth mentioning Euler's identity in the explanation? As a non-mathematician, the presence of e, pi, and i together in one equation looks "Euler's identity-ish" while clearly not being it. [[Special:Contributions/162.158.74.39|162.158.74.39]] 22:20, 19 August 2018 (UTC)
;Chemistry equation
OH should have a charge symbol: OH-. The actual reaction would be:

CH4 + OH- + heat -> CH3- + H2O

The methyl group can dissolve in water, and this is presumably happening in water, so this equation can work, just not the one provided by Randell. Reacting longer alkanes with bases is a way to make soaps, but the methyl group would be too reactive to be used this way. [[User:Nutster|Nutster]] ([[User talk:Nutster|talk]]) 13:13, 17 August 2018 (UTC)

;Fluid Dynamics equation
I believe the fraction 8/23 in the Fluid Dynamics equation is a Randallesque reference to the fractional approximation of pi = 22/7. It's probably not a coincidence that you get 8/23 from 22/7 if you invert it and add 1 to both the numerator and denominator. [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 15:19, 17 August 2018 (UTC)

:I think that is a bit of a stretch. If Randall wanted to reference the 22/7 approximation, I think he would simply use 22/7 and not 8/23. [[User:Redbelly98|Redbelly98]] ([[User talk:Redbelly98|talk]]) 00:40, 18 August 2018 (UTC)

::It might be a stretch, but maybe Randall wanted to be more clever than just inserting 22/7, since pi really has no place in that equation. I don't see anyone else suggesting any reasonable source for 8/23 in the equation. The current explanation is an even bigger stretch, since it has nothing in common with 8/23 beyond being just another fraction - it seems to suggest he picked two random numbers, 8 and 23, for the fraction! How unsatisfying! But if nobody else agrees, I'm not losing any sleep over it. (Sometimes I wish Randall would chime in to clear things like this up for us. Randall, where are you?) [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 04:54, 18 August 2018 (UTC)

:Fluid dynamicist here -- strange looking numbers and fractions come from multiplying tensors. 2/3 is a common one, but you also get numbers like 1/7 and 8/27.[[Special:Contributions/108.162.241.166|108.162.241.166]] 07:24, 18 August 2018 (UTC)

I changed a "p" to a Greek "rho". [[User:Redbelly98|Redbelly98]] ([[User talk:Redbelly98|talk]]) 00:40, 18 August 2018 (UTC)

;Gauge theory equation
<s>I think the transcript is missing a left superscript 0 before the turned xi. [[Special:Contributions/172.68.226.16|172.68.226.16]] 16:50, 17 August 2018 (UTC)</s> Ah no, sorry. False alarm. It's just that Randall writes the xi with a funny tail. The same tail is on the non-turned xi earlier. [[Special:Contributions/172.68.226.10|172.68.226.10]] 16:52, 17 August 2018 (UTC)

If explainxkcd.com is to make XKCD comics more understandable then this explanation is failing that. I assumed from the beginning that the joke was about the equations being wrong, but the description of the joke is making my head hurt. {{unsigned ip|162.158.106.216}}
:Read the first paragraph: "To someone who knows even a little about the topic, they are clearly very wrong and only seem even worse the more you look at them." Nevertheless the rest sometimes does hurt. See below. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 20:28, 17 August 2018 (UTC)

;All truly deep physics equations
In the description paragraph, the last sentence starting "The principle of least action says allows..." does not scan. If someone can fix this (copy&paste?) error, please delete this comment. [[Special:Contributions/162.158.58.171|162.158.58.171]] 19:33, 17 August 2018 (UTC)
:I edited the sentence slightly to address this issue. [[User:Ianrbibtitlht|Ianrbibtitlht]] ([[User talk:Ianrbibtitlht|talk]]) 20:51, 17 August 2018 (UTC)

It looks like there is already a section for this above, "Deep physics equations", or am I missing something? [[User:Redbelly98|Redbelly98]] ([[User talk:Redbelly98|talk]]) 00:40, 18 August 2018 (UTC)

Note that this comics also emphasizes that Randall is more familiar with physics than with chemistry : while most of the equations here require college-level education to grok, the chemistry one is at the very most high-scool-grade. {{unsigned ip|141.101.69.33}}

Could this be a reference to Feynman's jab at hiding complexity underneath symbol definitions to achieve 'simplicity'? See the Feynman Lectures on Physics, Volume II, Chapter 25, Section 6. [[Special:Contributions/162.158.150.100|162.158.150.100]] 09:19, 19 August 2018 (UTC)WhoIsJack

;Explanations in general
“Nobody knows if Randall references a horse here” - what?! Because the expression lacks an equal sign; doesn’t represent an equality, it might mean Randall is referencing equines, aka horses?! Is this vandalism, an attempt at a joke, or what? This explanation clearly still needs quite a bit of work! [[User:PotatoGod|PotatoGod]] ([[User talk:PotatoGod|talk]]) 20:14, 17 August 2018 (UTC)
:I've put a header on top here. It's not vandalism but every explanation looks still highly unscientific. I've gave real sources to the most topics at the beginning but the following explanations are mostly bad. --[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 20:22, 17 August 2018 (UTC)

;Kinematics equations
I fixed an error: Randall's Greek "rho" ''ρ'', a common symbol for mass density, was incorrectly shown here as ''p'', the common symbol for momentum. The term with the ''ρ'' is very similar to a term in the Bernoulli equation, and I have changed the explanation to reflect this. [[User:Redbelly98|Redbelly98]] ([[User talk:Redbelly98|talk]]) 00:40, 18 August 2018 (UTC)

;You might be overthinking some of these
For example, I see the first one as Energy = cot + private which would be an Army private resting in a cot to regain their energy.
The second one I see the word Knee, so I'm thinking it's either something about taking an arrow to a knee, or perhaps about the Knights of Ki who regain their power by saying "Ni!"
The fourth one, I see most of the word ANALOGY, so perhaps the trident-shaped thing equals N, and x> = L, and l (or 1) = G, so if you resolve all the way through you get GNL = ANALOGY and I don't have that quite right yet.
SU(2)U(1)xSU(U(2)) makes me think of Phil Collins singing "Su-Su-Sussudio oh oh". --[[Special:Contributions/108.162.245.40|108.162.245.40]] 20:37, 18 August 2018 (UTC)

476: One-Sided

2018-08-03T18:03:58Z

162.158.74.39: Added the related short story on the blog

{{comic
| number = 476
| date = September 15, 2008
| title = One-Sided
| image = one-sided.png
| titletext = He continued, "Okay, Bernanke is uncontaminated. Find a crossbow and get him into position behind one of the columns at the Fed entrance. This is gonna get ugly."
}}

==Explanation==
The comic refers to the phenomenon of hearing half a conversation from a stranger on a cell phone and, not noticing the cell phone, imagining that that person is talking to you and responding in kind. The chart gives a plot of the frequency that this occurs (for [[Randall]] here represented by the [[Cueball]] to the left) against the amount of time that passes before the error is discovered. It also implies that Randall's second relationship was in reality just a particularly long instance of this occurrence, suggesting that his 'girlfriend' wasn't even aware of the relationship.

The title text is the continuation of the phone call, which involves a fictional conspiracy involving the then Chairman of the {{w|Federal Reserve}}, {{w|Ben Bernanke}}, and a {{w|crossbow}}.

On September 23, about a week after this comic, Randall posted a [https://blog.xkcd.com/2008/09/23/federal-reserve-skateboard-a-short-story/ short story] to his blog, featuring Ben Bernanke breaking into the Federal Reserve building with a crossbow.

==Transcript==
:[Caption above the panel:]
:Sometimes my conversations with strangers go on for a while before I realize that they're talking on their phones.

:[To the right above a graph Cueball is standing next to a Cueball-like guy with a backpack.]
:Guy with backpack: Hi!
:Cueball: Hi.
:Guy with backpack: What's up?
:Cueball: Uh, not a lot...
:Guy with backpack: Shit. Does Bernanke own a crossbow?

:[To the left and below these two guys is a graph, with the axis labelled. The graph looks parabolic towards the left-hand side, but as x approaches infinity, y approaches zero. A vertical dashed line runs through the graph, slightly to the right of the peak of the graph. To the right of the dashed line there is an arrow pointing to the right that is labelled. The x-axis has a broken scale, and to the right of the break there is a very small increase in the graph that is parenthetically labelled with a small arrow.]
:Y-axis: How Often This Happens
:X-axis: Length of conversation
:Arrow: Awkward Zone
:Small arrow: (My Second Relationship)

{{comic discussion}}
[[Category:Comics featuring Cueball]]
[[Category: Multiple Cueballs]]
[[Category:Line graphs]]
[[Category:Crossbows]]
[[Category:Social interactions]]
[[Category:Comics featuring politicians]]

1989: IMHO

2018-05-04T16:29:53Z

162.158.74.39:

{{comic
| number = 1989
| date = May 4, 2018
| title = IMHO
| image = imho.png
| titletext = "Ugh, TMI." "Yeah, that's some tantalizing meat info."
}}

==Explanation==
{{incomplete|Created by a BOT - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
The conversation begins with a reference to the controversy between whether the H in IMHO (In my honest/humble opinion) stands for "honest" or "humble". Some older internet users, including Cueball, use it to mean "humble", which Cueball references as being the norm in the 1990s. However, many younger internet users, including, apparently, Ponytail, use it to mean "honest", which became the norm after another SMS abbreviation, TBH (To be honest) became popular c. 2011. However, the joke veers into absurdity with Ponytail sharing her unusual opinions on other internet controversies, including:

Believing the G in GIF (Graphics Interchange Format) is silent, as opposed to the two main camps claiming it should be a hard or a soft G.

Believing a viral picture of a dress that appears black and blue to some people and white and gold to others is actually black and white.

Using tabs after periods, instead of the two main opposing camps of using either one or two spaces, referring to both the common programmingargument whether to indent with 4 spaces or a tab, and the 2 spaces or 1 after the period argument.

Believing TMI to be "Tantalizing Meat Info" instead of Too Much Information

==Transcript==
{{incomplete transcript|Do NOT delete this tag too soon.}}

{{comic discussion}}

1729: Migrating Geese

2016-09-08T14:46:32Z

162.158.74.39: /* Explanation */

{{comic
| number = 1729
| date = September 5, 2016
| title = Migrating Geese
| image = migrating_geese.png
| titletext = "Hey guys! I have a great idea for a migration!" "Dammit, Kevin."
}}

==Explanation==
{{incomplete|Is there not some kind of slang on "Head Goose" that could relate to the fourth in line to the GB throne? More on the title text: "An idea for A migration?".}}
{{w|Bird migration|Migrating}} refers to the changing of a habitat, which happens every year with birds like {{w|geese}} that travel long distances to avoid cold seasons and get back to the food in the summer time. When geese fly to their new habitat, they tend to fly in a very clear {{w|V formation}}. The V formation improves the efficiency of flying birds, particularly over long migratory routes. All the birds except the first fly in the upwash from one of the wingtip vortices of the bird ahead. The upwash assists each bird except for the "leading" one in supporting its own weight in flight, saving them up to 20% of the energy needed.

It should be noted that geese do have family structures with adult geese in "alpha" positions, but not a strict ranking order. An individual's position in formation flights is coincidental and constantly changing, so that the goose at the point of the formation can pull back and rest in the V wings while others "lead" the swarm. Popular earlier beliefs about an "alpha goose" heading a formation for the entire flight is a myth, easily disproven by watching geese formations in flight.

This comic shows such a formation with 20 geese, with several geese and areas in the V formation labeled, giving different roles to the geese and assigning these areas a new meaning. See the [[#Table of labels|table below]].

Apart from a "twin engine" goose in the bottom right arm of the V the only part of the formation that would not normally be seen is Kevin, who flies off at a 45-degree angle. In that direction there is no aerodynamic help from the other birds, and in the title text the rest of the geese also exclaim, "Dammit, Kevin" when he (again?) tells them that he has a great new idea for a migration (maybe referring to the new direction).

===Table of labels===
{| class="wikitable"
!Name
!Explanation
|-
|Head Goose
(4th in line to the British throne)
|This goose is in line to become the newest monarch of the United Kingdom after the deaths of the three (humans) who are ahead it (Charles, Prince of Wales; Prince William, Duke of Cambridge; Prince George of Cambridge[https://en.wikipedia.org/wiki/Succession_to_the_British_throne]). The current fourth in line to the British throne is {{w|HRH}} {{w|Princess Charlotte of Cambridge}}. In North America, the best-known goose migration is that of {{w|Canada goose|Canada geese}} to the US east coast. Canada used to be part of the {{w|British Empire}} and remains a member of the {{w|Commonwealth of Nations}}, so a "Canadian" goose would be well situated to stand within the succession.
|-
|Quarterback
|A {{w|quarterback}} is a position in {{w|American football}}, usually placed in the second row of an American football formation, just like the associated goose. On nearly every non-kicking play, the quarterback is the player who stands behind the center and receives the ball to start the play. In modern American football, the quarterback is usually considered the leader of the team, and is often responsible for calling the play.
|-
|Comptroller
|A {{w|comptroller}} is a position in a company. A comptroller oversees and manages all financial operations.
|-
|Migration abort goose
|This might be a reference to launch abort capsules used in rockets to safely land astronauts in the case of a critical stage failure. Or it could be operated like an abort button aborting the entire migration for all geese.
|-
|Twin-Engine Model
|This goose has two tails offset on each side of the center of the goose, instead of one tail in the middle like the rest. The "tails" also extend beyond the wings, which makes it look like a Twin-Engine aircraft, which has two motors: one on each wing instead of one in the nose.
|-
|CIA Informant
|A person, usually a criminal, that surreptitiously provides information to the {{w|Central Intelligence Agency}} (CIA). If these geese are from Canada, the CIA might have inserted an informant to be kept up to date on their activities.
|-
|Backups
|These are geese that are not used in the formation so they can replace other geese in their positions in case they have problems performing their task. This may also be a pun/joke about technology/data "migrations" where backups should be taken liberally due to risk of data loss.
|-
|Shock Front
| A shock front is the front boundary of a {{w|shock wave}} created by either a {{w|sonic boom}} or another explosion in a fluid/gas. It can also refer to the shock wave itself. It usually only happens when such violent events occur, and would thus not be present in front of "normally" migrating geese. But of course this set of geese may be somewhat different with the involvement of CIA and stealth technology.
|-
|Missing Valence Geese
|In Chemistry, {{w|Valence (chemistry)|valence}} electrons are the electrons in the outermost "layer" which change places when chemical reactions happen. As there is an optimal number of electrons in a layer, if there are missing valence electrons, atoms which can fill in these gaps tend to react with the atoms having the missing electrons. In case of "electron sharing" (aka covalent bond) molecules result from such an encounter. The comic suggests a second geese formation that has proper "valence geese" in the appropriate position could bond (=merge) with this one into a larger formation. A normal geese V formation like the one in the comic has one side longer than the other and this is possibly Randall's explanation for the phenomenon.
In reality, geese do form V-shaped flocks, since the rear geese can profit aerodynamically from the vortices created by the front geese, and that way the overall flock requires less energy. So there is actually some evolutionary sense for additional geese to fill the "valence holes". It is thus a little weird that there are two backup geese close to these valence vacancies, as they should then have filled them up...
|-
|Stealth cargo being escorted
|The formation is forming a protective surrounding around an empty space in the middle which in a military formation could contain protected cargo. As there is no cargo visible in the geese formation, it is titled "{{w|Stealth technology|stealth}}". This would be a nice [[:Category:Conspiracy theory|conspiracy theory]] to spread.
|-
|Kevin
|Also mentioned in the title text. It is unclear what the name refers to. It may refer to:
* The "go-to name" for [[Randall]] at the time of this comic's release, as he also used the name in [[1719: Superzoom]], ten comics before this one.
* An {{w|Eddie Izzard}} skit about migrating birds (Eddie Izzard - Religions, Cats & Migrating Birds). A group of birds are following Kevin, assuming that he knows where he is going. But he is lost and they end up in the wrong place.
* Kevin McCallister from the {{w|Home Alone}} movies, who gets separated from his parents a lot. (see [[1164: Home Alone]]).
* [https://www.reddit.com/r/AskReddit/comments/219w2o/whos_the_dumbest_person_youve_ever_met/cgbhkwp Kevin of reddit fame], the dumbest person ever.
* One of the {{w|Minions (Despicable Me)|Minions}} from the "{{w|Despicable Me}}" franchise ([http://despicableme.wikia.com/wiki/Kevin Kevin]), who leaves the main Minion group in search of a new master.
* The intelligent and playful bird [http://disney.wikia.com/wiki/Kevin Kevin], from the Disney/Pixar movie {{w|Up (movie)|Up}}.
* [https://youtu.be/OyqdoxTEmdg Kevin] from {{w|South Park}}. Especially the "Dammit Kevin" mentioned in the title text could arise from this.
* [http://the321penguins.wikia.com/wiki/Kevin Kevin] from [https://en.wikipedia.org/wiki/3-2-1_Penguins! 3-2-1 Penguins!], who "will answer questions and save planets without even knowing he could."
* {{w|We Need to Talk About Kevin}}, a book and drama film about a deranged child.
* Kevin Beckman, the dimwitted receptionist from the 2016 [https://en.wikipedia.org/wiki/Ghostbusters:_Answer_the_Call Ghostbusters] movie.
* Just a random name, as the only of the birds that actually has a personal name acts alone instead of following the other birds.
|}

==Transcript==
:[Caption above the panel:]
:Understanding Migration of Geese

:[20 geese are shown flying in a typical migratory V-formation. As they are shown in silhouette it is not possible to determine if they are seen from above or from below. They are flying toward the top of the image with the first goose close to the top in the middle of the image. There is one head goose, and then there are 7 geese in the left arms and 9 geese in the right arm. Behind the left arm there are two stragglers that are not in line with the others, but closer to the middle than those above and not as close to each other as the rest but still flying in the same direction. Finally there is one goose at the bottom right corner flying at a 45 degree angle away from the other to the right. The first goose is flapping its wing, which is also the case with six other geese, no. 4 and 6 in the left and 3, 5 and 6 in the right arm as well as the middle of the two in the rear towards the middle. The rest are soaring with straight wings and all of these look the same except no. 7 in the right arm which has two tails, which both goes ahead of the wings, making it look like a plane with two engines. The head goose and 5 of the 9 geese in the right arm as well as the one bottom right are labelled with and arrow pointing to them from the label. The front goose has the label in front to the left, the other have it in front to the right, except the second last in the arm which has the label inside the V and one flying away which has the label right above it. The two behind and right of the left arm have one label behind them with two arrows from the label pointing at both geese. There is a thick curvy line in front of geese no. 3 to 5 in the left arm. In front of that line is a thinner broken line. In front of this is a label written with the same curvature. There are two areas surrounded by dotted lines. The first one is behind the last of the left arms geese, extending in the same direction for a distance of about two geese. It has a label above and left with and arrow pointing to it. The other area is in the middle of the V forming a loose triangular structure with a label inside.]
:Head goose: Head goose (4th in line to the British throne)
:Right no. 1: Quarterback
:Right no. 3: Comptroller
:Right no. 5: Migration abort goose
:Right no. 7: Twin-engine model
:Right no. 8: CIA informant
:Bottom right corner: Kevin
:Behind center: Backups
:In front of left no. 3-5: Shock front
:Empty area behind left arm: Missing valence geese
:Empty area in center: Stealth cargo being escorted

{{comic discussion}}

[[Category:Animals]]
[[Category:American football]]

1729: Migrating Geese

2016-09-08T14:45:27Z

162.158.74.39: /* Table of labels */

{{comic
| number = 1729
| date = September 5, 2016
| title = Migrating Geese
| image = migrating_geese.png
| titletext = "Hey guys! I have a great idea for a migration!" "Dammit, Kevin."
}}

==Explanation==
{{incomplete|Is there not some kind of slang on "Head Goose" that could relate to the fourth in line to the GB throne? Who are the three first in line to the throne? (both to be put in the table). More on the title text: "An idea for A migration?".}}
{{w|Bird migration|Migrating}} refers to the changing of a habitat, which happens every year with birds like {{w|geese}} that travel long distances to avoid cold seasons and get back to the food in the summer time. When geese fly to their new habitat, they tend to fly in a very clear {{w|V formation}}. The V formation improves the efficiency of flying birds, particularly over long migratory routes. All the birds except the first fly in the upwash from one of the wingtip vortices of the bird ahead. The upwash assists each bird except for the "leading" one in supporting its own weight in flight, saving them up to 20% of the energy needed.

It should be noted that geese do have family structures with adult geese in "alpha" positions, but not a strict ranking order. An individual's position in formation flights is coincidental and constantly changing, so that the goose at the point of the formation can pull back and rest in the V wings while others "lead" the swarm. Popular earlier beliefs about an "alpha goose" heading a formation for the entire flight is a myth, easily disproven by watching geese formations in flight.

This comic shows such a formation with 20 geese, with several geese and areas in the V formation labeled, giving different roles to the geese and assigning these areas a new meaning. See the [[#Table of labels|table below]].

Apart from a "twin engine" goose in the bottom right arm of the V the only part of the formation that would not normally be seen is Kevin, who flies off at a 45-degree angle. In that direction there is no aerodynamic help from the other birds, and in the title text the rest of the geese also exclaim, "Dammit, Kevin" when he (again?) tells them that he has a great new idea for a migration (maybe referring to the new direction).

===Table of labels===
{| class="wikitable"
!Name
!Explanation
|-
|Head Goose
(4th in line to the British throne)
|This goose is in line to become the newest monarch of the United Kingdom after the deaths of the three (humans) who are ahead it (Charles, Prince of Wales; Prince William, Duke of Cambridge; Prince George of Cambridge[https://en.wikipedia.org/wiki/Succession_to_the_British_throne]). The current fourth in line to the British throne is {{w|HRH}} {{w|Princess Charlotte of Cambridge}}. In North America, the best-known goose migration is that of {{w|Canada goose|Canada geese}} to the US east coast. Canada used to be part of the {{w|British Empire}} and remains a member of the {{w|Commonwealth of Nations}}, so a "Canadian" goose would be well situated to stand within the succession.
|-
|Quarterback
|A {{w|quarterback}} is a position in {{w|American football}}, usually placed in the second row of an American football formation, just like the associated goose. On nearly every non-kicking play, the quarterback is the player who stands behind the center and receives the ball to start the play. In modern American football, the quarterback is usually considered the leader of the team, and is often responsible for calling the play.
|-
|Comptroller
|A {{w|comptroller}} is a position in a company. A comptroller oversees and manages all financial operations.
|-
|Migration abort goose
|This might be a reference to launch abort capsules used in rockets to safely land astronauts in the case of a critical stage failure. Or it could be operated like an abort button aborting the entire migration for all geese.
|-
|Twin-Engine Model
|This goose has two tails offset on each side of the center of the goose, instead of one tail in the middle like the rest. The "tails" also extend beyond the wings, which makes it look like a Twin-Engine aircraft, which has two motors: one on each wing instead of one in the nose.
|-
|CIA Informant
|A person, usually a criminal, that surreptitiously provides information to the {{w|Central Intelligence Agency}} (CIA). If these geese are from Canada, the CIA might have inserted an informant to be kept up to date on their activities.
|-
|Backups
|These are geese that are not used in the formation so they can replace other geese in their positions in case they have problems performing their task. This may also be a pun/joke about technology/data "migrations" where backups should be taken liberally due to risk of data loss.
|-
|Shock Front
| A shock front is the front boundary of a {{w|shock wave}} created by either a {{w|sonic boom}} or another explosion in a fluid/gas. It can also refer to the shock wave itself. It usually only happens when such violent events occur, and would thus not be present in front of "normally" migrating geese. But of course this set of geese may be somewhat different with the involvement of CIA and stealth technology.
|-
|Missing Valence Geese
|In Chemistry, {{w|Valence (chemistry)|valence}} electrons are the electrons in the outermost "layer" which change places when chemical reactions happen. As there is an optimal number of electrons in a layer, if there are missing valence electrons, atoms which can fill in these gaps tend to react with the atoms having the missing electrons. In case of "electron sharing" (aka covalent bond) molecules result from such an encounter. The comic suggests a second geese formation that has proper "valence geese" in the appropriate position could bond (=merge) with this one into a larger formation. A normal geese V formation like the one in the comic has one side longer than the other and this is possibly Randall's explanation for the phenomenon.
In reality, geese do form V-shaped flocks, since the rear geese can profit aerodynamically from the vortices created by the front geese, and that way the overall flock requires less energy. So there is actually some evolutionary sense for additional geese to fill the "valence holes". It is thus a little weird that there are two backup geese close to these valence vacancies, as they should then have filled them up...
|-
|Stealth cargo being escorted
|The formation is forming a protective surrounding around an empty space in the middle which in a military formation could contain protected cargo. As there is no cargo visible in the geese formation, it is titled "{{w|Stealth technology|stealth}}". This would be a nice [[:Category:Conspiracy theory|conspiracy theory]] to spread.
|-
|Kevin
|Also mentioned in the title text. It is unclear what the name refers to. It may refer to:
* The "go-to name" for [[Randall]] at the time of this comic's release, as he also used the name in [[1719: Superzoom]], ten comics before this one.
* An {{w|Eddie Izzard}} skit about migrating birds (Eddie Izzard - Religions, Cats & Migrating Birds). A group of birds are following Kevin, assuming that he knows where he is going. But he is lost and they end up in the wrong place.
* Kevin McCallister from the {{w|Home Alone}} movies, who gets separated from his parents a lot. (see [[1164: Home Alone]]).
* [https://www.reddit.com/r/AskReddit/comments/219w2o/whos_the_dumbest_person_youve_ever_met/cgbhkwp Kevin of reddit fame], the dumbest person ever.
* One of the {{w|Minions (Despicable Me)|Minions}} from the "{{w|Despicable Me}}" franchise ([http://despicableme.wikia.com/wiki/Kevin Kevin]), who leaves the main Minion group in search of a new master.
* The intelligent and playful bird [http://disney.wikia.com/wiki/Kevin Kevin], from the Disney/Pixar movie {{w|Up (movie)|Up}}.
* [https://youtu.be/OyqdoxTEmdg Kevin] from {{w|South Park}}. Especially the "Dammit Kevin" mentioned in the title text could arise from this.
* [http://the321penguins.wikia.com/wiki/Kevin Kevin] from [https://en.wikipedia.org/wiki/3-2-1_Penguins! 3-2-1 Penguins!], who "will answer questions and save planets without even knowing he could."
* {{w|We Need to Talk About Kevin}}, a book and drama film about a deranged child.
* Kevin Beckman, the dimwitted receptionist from the 2016 [https://en.wikipedia.org/wiki/Ghostbusters:_Answer_the_Call Ghostbusters] movie.
* Just a random name, as the only of the birds that actually has a personal name acts alone instead of following the other birds.
|}

==Transcript==
:[Caption above the panel:]
:Understanding Migration of Geese

:[20 geese are shown flying in a typical migratory V-formation. As they are shown in silhouette it is not possible to determine if they are seen from above or from below. They are flying toward the top of the image with the first goose close to the top in the middle of the image. There is one head goose, and then there are 7 geese in the left arms and 9 geese in the right arm. Behind the left arm there are two stragglers that are not in line with the others, but closer to the middle than those above and not as close to each other as the rest but still flying in the same direction. Finally there is one goose at the bottom right corner flying at a 45 degree angle away from the other to the right. The first goose is flapping its wing, which is also the case with six other geese, no. 4 and 6 in the left and 3, 5 and 6 in the right arm as well as the middle of the two in the rear towards the middle. The rest are soaring with straight wings and all of these look the same except no. 7 in the right arm which has two tails, which both goes ahead of the wings, making it look like a plane with two engines. The head goose and 5 of the 9 geese in the right arm as well as the one bottom right are labelled with and arrow pointing to them from the label. The front goose has the label in front to the left, the other have it in front to the right, except the second last in the arm which has the label inside the V and one flying away which has the label right above it. The two behind and right of the left arm have one label behind them with two arrows from the label pointing at both geese. There is a thick curvy line in front of geese no. 3 to 5 in the left arm. In front of that line is a thinner broken line. In front of this is a label written with the same curvature. There are two areas surrounded by dotted lines. The first one is behind the last of the left arms geese, extending in the same direction for a distance of about two geese. It has a label above and left with and arrow pointing to it. The other area is in the middle of the V forming a loose triangular structure with a label inside.]
:Head goose: Head goose (4th in line to the British throne)
:Right no. 1: Quarterback
:Right no. 3: Comptroller
:Right no. 5: Migration abort goose
:Right no. 7: Twin-engine model
:Right no. 8: CIA informant
:Bottom right corner: Kevin
:Behind center: Backups
:In front of left no. 3-5: Shock front
:Empty area behind left arm: Missing valence geese
:Empty area in center: Stealth cargo being escorted

{{comic discussion}}

[[Category:Animals]]
[[Category:American football]]